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Thermodynamic modeling of binary CH4-H2O fluid inclusions

文献类型：期刊论文

作者Mao, Shide1; Duan, Zhenhao2; Zhang, Dehui1; Shi, Lanlan1; Chen, Yali1; Li, Jing1
刊名GEOCHIMICA ET COSMOCHIMICA ACTA
出版日期2011-10-15
卷号75期号:20页码:5892-5902
ISSN号0016-7037
DOI10.1016/j.gca.2011.07.021
文献子类Article
英文摘要This work reports the application of thermodynamic models, including equations of state, to binary (salt-free) CH4-H2O fluid inclusions. A general method is presented to calculate the compositions of CH4-H2O inclusions using the phase volume fractions and dissolution temperatures of CH4 hydrate. To calculate the homogenization pressures and isolines of the CH4-H2O inclusions, an improved activity-fugacity model is developed to predict the vapor-liquid phase equilibrium. The phase equilibrium model can predict methane solubility in the liquid phase and water content in the vapor phase from 273 to 623 K and from 1 to 1000 bar (up to 2000 bar for the liquid phase), within or close to experimental uncertainties. Compared to reliable experimental phase equilibrium data, the average deviation of the water content in the vapor phase and methane solubility in the liquid phase is 4.29% and 3.63%, respectively. In the near-critical region, the predicted composition deviations increase to over 10%. The vapor-liquid phase equilibrium model together with the updated volumetric model of homogenous (single-phase) CH4-H2O fluid mixtures (Mao S., Duan Z., Hu J. and Zhang D. (2010) A model for single-phase PVTx properties of CO2-CH4-C2H6-N-2-H2O-NaCl fluid mixtures from 273 to 1273 K and from 1 to 5000 bar. Chem. Geol. 275, 148-160), is applied to calculate the isolines, homogenization pressures, homogenization volumes, and isochores at specified homogenization temperatures and compositions. Online calculation is on the website:http://www.geochem-model.org/. (C) 2011 Elsevier Ltd. All rights reserved.
WOS关键词VAPOR-LIQUID-EQUILIBRIA ; METHANE PLUS WATER ; SALT SOLUTIONS ; HYDROPHOBIC INTERACTION ; PHASE-EQUILIBRIUM ; AQUEOUS-SOLUTIONS ; NATURAL GASES ; HIGH-PRESSURE ; SOLUBILITY ; SYSTEMS
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000295641600006
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构Key Project Funds(90914010) ; Key Project Funds(90914010) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Management Office(20109903) ; Chinese Management Office(20109903) ; Chinese Academy of Sciences(kzcx2-yw-124) ; Chinese Academy of Sciences(kzcx2-yw-124) ; Key Project Funds(90914010) ; Key Project Funds(90914010) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Management Office(20109903) ; Chinese Management Office(20109903) ; Chinese Academy of Sciences(kzcx2-yw-124) ; Chinese Academy of Sciences(kzcx2-yw-124) ; Key Project Funds(90914010) ; Key Project Funds(90914010) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Management Office(20109903) ; Chinese Management Office(20109903) ; Chinese Academy of Sciences(kzcx2-yw-124) ; Chinese Academy of Sciences(kzcx2-yw-124) ; Key Project Funds(90914010) ; Key Project Funds(90914010) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Management Office(20109903) ; Chinese Management Office(20109903) ; Chinese Academy of Sciences(kzcx2-yw-124) ; Chinese Academy of Sciences(kzcx2-yw-124)
源URL[http://ir.iggcas.ac.cn/handle/132A11/74192]  
专题中国科学院地质与地球物理研究所
通讯作者Mao, Shide
作者单位1.China Univ Geosci, Sch Earth Sci & Resources, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Mao, Shide,Duan, Zhenhao,Zhang, Dehui,et al. Thermodynamic modeling of binary CH4-H2O fluid inclusions[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2011,75(20):5892-5902.
APA Mao, Shide,Duan, Zhenhao,Zhang, Dehui,Shi, Lanlan,Chen, Yali,&Li, Jing.(2011).Thermodynamic modeling of binary CH4-H2O fluid inclusions.GEOCHIMICA ET COSMOCHIMICA ACTA,75(20),5892-5902.
MLA Mao, Shide,et al."Thermodynamic modeling of binary CH4-H2O fluid inclusions".GEOCHIMICA ET COSMOCHIMICA ACTA 75.20(2011):5892-5902.

入库方式： OAI收割

来源：地质与地球物理研究所

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